Building construction.



J. KAHN.

BulLmNG coNsTRuTloN.

APPLICATION FILED AUG-23| 1915.

1,192,208, Patented July 191g;

wilgen@ Y JUA l UNITED STATES PATENT OFFICE,

STULIUS KAI-IN, OF YOUNGSTOWN, OHIO, ASSIGNOR TO TRUSSED CONCRETE STEELCOMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

BUILDING CONSTRUCTION.

Specincation of Letters Patent.

Application led August 23, 1915. Serial No. 46,799.

1 0 am lLa/1.0m t may concern Be it linown that I, JULIUs KAHN, a citi-.ien of the United States, residing at Youngstown, in the county ofMahoning and State of Ohio, have invented a new and useful BuildingConstruction, of which the following is a specification.

This invention relates to a metal frame for a building, and among itsimpo-rtant features are the following: means whereby two structuralmetal sections, one of which has a plurality of rows of spacedtransverse slots, may be assembled and securely braced with respect toeach other at points corresponding to any desired pair of transverseslots by a wedge connection, whereby the use of rivets or bolts isavoided; means whereby a third structural metal section of lessdimension than the others may be connected to the two first mentionedsections by wedge means, the three\sections mentioned preferablyconstituting the first story stud, cap plate and second story stud; andmeans whereby bolts may be readilyA substituted for the wedges ifdesired.

The invention also consists in the details of construction shown,described and particularly pointed out in the claims.

In the drawings, Figure 1 is a perspective View of a preferredvembodiment of the invention. Fig. 2is a vertical section through thecap plate and adjacent parts. Fig. 3 is an elevation of a floor beam andadjacent joists wherein the invention is also embodied.

Similar reference characters refer to like parts throughout the severalviews.

Under the ordinary base wall l is mounted a sill 2, preferably of Ipressed metal, in which are formed on opposite sides of the longitudinalcenter parallel rows of alined transverse slots 3, each ofwhichpreferably includes the circular or enlarged mid-portion, 4. The sillmay be of Z.section, in which case one flange 5 i's placed so as toengage the inner surface of the wall, the other flange 8 being extendedupwardly in the plane of the outer wall surface. Rising from the sill isthe stud (of substantially the same transverse width as the sill) thatincludes the web 12, the side flanges 13 and, preferably, the in-turnededge flanges 14, the latter of which not only stiffenthe stud but engagethe sill to insure a proper bear- The stud has struck therefrom near'its ends rows of transversely alined stirrups 15, the spacing of whichcorresponds to that of the rows of slots in the sill, and is perforatedbetween the stirrups of each row for a purpose hereinafter indicated.Flat metal connectors having ends extending longitudinally beneath thesill also have Shanks 2l that pass through corresponding slots of eachrow and upwardly between the pairs of stirrups and the web of `lthestud; these Shanks are perforated between the stirrups of each row, anda two-armed wedge 24 (one arm 25 of which is sharpened and bites intothe upper surface of the sill, the other arm being tapered) is driventhrough the perforation in the stud and through that in the shank of theconnector. These perforations are so located as to allow the wedge todraw the connector firmly into engagement with the lower face of thesill, or, in other words, so as to draw the sill and the stud together.When the parts are thus joined, the arms 25, together with the web ofthe` stud and the in-turned flanges 14, form a broad bearing and preventthe stud from swinging longitudinally on the sill in one direction, andalso afford a very rigid joint as concerns lateral swinging stresses;and the ends 20 stifen the stud against swinging longitudinally in thereverse direction.

The studs 12-13-14 (but one of which is shown) extend from the sill tothe next story of the building and are there surmounted by thelongitudinal cap 26 (pref- `erably of channel cross-section) havingdown-turned anges 27 that embrace the sides of the studs. The cap isalso provided With rows of transverse slots 3-4 that correspond to theslots in the sill. At the upper ends the studs are perforated and havestirrups 15; and a connector 2021, that passes through one of theslots'3, is .secured in position by a wedge 24, the construction andpurpose of these elements being the same as previously described withreference to the joints between the stud and the sill.

Rising from the cap in alinement with the outer side of the stud12-13-14 is a second story stud of vless transverse depth than theformer that includesthe web 29,

vside flanges and (preferably) the inturned edge flanges 31. The secondstory stud is provided with a single row of stirrups 15 and a flat metalconnector 32, that Patented July a5, 1916.

plate is secured in position by bolts 36.A

Other uses are obvious-for example, the connectors may have their ends20 placed above the sill and bolted thereto directly through the holes4. It will be understood, of course, that the provision of the series ofslots allows the studs to be located at practically any desired spacingalong the sill.

rIhe invention is also applicable to floor beam and joist connections.In Fig. 3 a floor beam formed of two pressed channel sections rivetedtogether baclg to back, supports on one side a pressed channel joist 4lof a given depth and on the opposite side an opposed pressed channeljoist 42 of lesser (preferably half) depth. The floor beam is providedwith two rows of slots (not shown) corresponding to the slots 3-4,through the upper ofwhich passes a connector 32 that serves to join thetwo joists, and through the lower of which passes a connector 20-21.'Two armed wedges 24 clamp the parts together as in thecase of the studsand cap plate.

It is clear that the arrangement of the members is subject to WideVariation, and the present illustrations are to be taken, therefore, asdiagrammatic.l Consequently, I do not wish to be limited otherwise thanas indicated by the subjoined claims.

I claim l. In a building structure, a metal bar lhavingtwo transverselyalined spaced stirrups near one of its ends, a second metal barextending across the end of the frstjbar, said second Lbar having a pairof transversely alined transverse slots spaced from each other tocorrespond to the spacing of the stirrups, a third metal bar alined withtheirstbar and engaging the second bar from the opposite side, saidthird bar having a transverse stirrup near its end, a pair of(connectors, one passing through one of the stirrups on the first barafnd one of the slots in the second bar, the other passing through thesecond stirrup `on the first bar, through the second slot 1n 4the secondbar and through the stirrup on the third bar, land wedges. engaging theconnectors for clampingthe parts together.

, 2. In a building, a metal stud having two transversely spaced stirrupsnear its upper end, a metal cap plate surmounting the stud vand having apair of transversely alined transverse slots spaced from each other tocorrespond to the spacing of the stirrups, a second metal stud ofVlesser transverse dimension than the first mentioned stud and risingfrom the cap palate, said second bar f having a transverse stirrup nearits end, a

yrup on the second stud, and wedges engaging the connectors for clampingthe parts together.

3. In a building structure, a metal bar having two transversely alinedspaced stirrups near one of its ends, a second metal bar extendingacross the end of the first bar, said second bar having a pair ofItransversely alined transverse slots spaced from each other tocorrespond to the spacing of the stirrups, a third metal bar alined withthe first bar and engaging the second bar from the opposite side, saidthird bar having a transverse stirrup near its end, a pair ofconnectors, one passing throughone of the stirrups on the firstbar andone of' theslots in the second bar, the other passing through thesecondfstirrup on the first bar, through the second slot in the secondbar and through the stirrup on the third bar, and wedges engaging theconnectors for clamping the parts together, said wedges engaging thesecond bar at points removed longitudinally from the slots wherebybracing against swinging is secured.

4. In a building structure, a metal bar having two transverselyalinedspaced stirrups near one of its ends, a second metal bar extendingacross the end of the first bar, said second bar having a pair oftransversely alined transverse slots spaced from each other tocorrespond to the spacing of the stirrups, a third metalbar alined withthe first bar and engaging the second bar from the opposite side, saidthird bar having a transverse stirrup near its end, a pair ofconnectors, one passing through one of the stirrups on the first bar andone of the slots in the second bar, the other passing through the secondstirrup on the first bar, through the second slot'in the second bar andthrough the stirrup on the third bar, and wedges engaging the connectorsfor (clamping the parts together, said first bar includinga flange andsaid third bar including a fiange in the same plane with the flange onthe first bar.

5. In a metal structure, the vcombination of a pair of structuralmembers engaging at an angle, one having a plurality of rows of alinedtransverse slots and the other having a plurality of struck-up stirrupsspaced to correspond to the spacing between the rows of transverseslots, a plurality of connectors, each extending beneath a stirrup andthrough the corresponding slot, and a plurality of two-armed keys, eachhaving a wedge-shaped arm engaging the corresponding connector and onestructural member to force it against the second and each having anotherarm provided with a pointed end adapted to engage the second member adistance from said slot, whereby vswaying of one member eitherlongitudinally or transversely in respect to the other is prevented. 6.In a metal structure, the combination of a plurality of perforatedflat-sided bars engaging each other at an angle, the perforations in oneofthe bars being in the form of a plurality of rows of transverselyextending slots, connectors lying against a fiat side of one of the barsand extending, respectively, through the corresponding transverse slotin the otherl and having the extending ends bent over to preventmovement out of said slots, ,and a 4pair of twoarmed wedges each havingone arm extending through a slot in one of the bars and through a slotin oneof the connectors to force' the bars together, the other armextending into engagement with the bar that has the slots through whichthe connectors pass, whereby bracing of the parts is secured. f

7. In a metal structure, the combination of a pair of bars each having aweb and a flange, one of' said bars having a pair .of transverse slotsalined transversely thereof and the other having a plurality of stirrupsstruck from its web at an angle to its flange, a plurality of connectorseach of which extends through beneath the corresponding stirrup andthrough the corresponding transverse slot, and means engaging theconnectors and one of the bars to force it against the other bar,whereby lateral tip- 4 ping of the bars with respect to each otherllatter having a pair of transversely alined transverse perforations,the firstbar being of greater transverse dimension than the third, apair of transversely spaced` stirrups formed on the first bar, atransverse stirrup formed on the third bar, and a pair of connectors,one of which passes through one of the slots in the second bar andthrough one of the stirrups in the first, the other connector passingthrough the other slot inthe second bar, through the stirrup on thethird bar, and throughthe remaining stirrup on the first bar, wherebythe bars are held together. l

9. In a metal structure, the combination of three bars, the first andthird bars being arranged to intersect the second and the latterl havinga pair of transversely alined transverse perforations, the iirst barbeing of greater transverse dimension thanI the third, a pair oftransversely spaced stirrups formed on the irst bar, a transversestirrup formed onthe third bar, and a pair of connectors, one of whichpasses through one of the slots in the second bar and through one of thestirrups in the first, the other connector passing through the otherslot in the .second bar, through the stirrup on the third bar 4andthrough the remaining stirrup on the first bar, and wedges passingthrough the connectors and engaging with the second bar, whereby thebars are rigidly clamped together.

In testimony whereof I have signed this specification.

JULiUs KAHN.

